AMERICAN MOTHS OF THE SUBFAMILY PHYCITDSTAE 



111 



Male genitalia differ from those of bistriatella only in 

 insignificant details. Female genitalia having bursa 

 without sclerotized patch. However, a sclerotized 

 patch similar to that shown for bistriatella (fig. 797) is 

 present in the bursa of a female in the National Collec- 

 tion from Slate Peak, Wash. On this specimen there 

 is also a weak sclerotization of the ventral surface of the 

 ductus bursae at genital opening. 



Type locality: Colorado (type in AMNH, ex Rut- 

 gers). 



Food plant: Unknown. 



Distribution: Colorado; Arizona, White Mountains 

 (June); Washington, Slate Peak (Okanogan County, 

 Aug.). 



I have seen no Colorado examples except the male 

 type, but the Arizona locality is represented in the 

 National Collection by a series of males and females in 

 excellent condition (collected by Grace M. and John L. 

 Sperry at Colter's Ranch in the White Moimtains, June 

 17-18, 1937). Their male genitalia are like those of the 

 type. 



229. Catastia actualis (Hulst), new combination 

 Figures 317, 794 



Nephopteryx actualis Hulst, Trans. Amer. Ent. Soc, vol. 13, p. 

 161, 1886. 



Dioryclria actualis (Hulst), Phycitidae of N. Amer., p. 135, 

 1890.— Ragonot, Monograph, pt. 1, p. 203, 1893.— McDun- 

 nough. Check list, No. 6132, 1939. 



Monoptilota actualis (Hulst), TJ. S. Nat. Mus. Bull. 52, p. 421, 

 1902 (this combination the result of an accidental misplace- 

 ment) . 



Forewing with basal and outer areas ocherous, the 

 basal area more or less dusted with ashy fuscous, espe- 

 cially towards inner margin, the outer area with some 

 blackish streaks on the veins; median area (between 

 the transverse lines) ashy fuscous, the whitish dusting 

 concentrated into a pale suffusion transversely across 

 the wing from costa before subterminal line to or almost 

 to inner margin at base of antemedial line; antemedial 

 line white, oblique, notched below cell and more or less 

 dentate above; bordered outwardly by a diffused black- 

 ish smudge at costa and below cell by a blacldsh line, 

 and preceded on inner margin by a black patch (except 

 on California examples) ; a blackish spot precedes and 

 one usually follows the sinuate subterminal white line 

 on costa, the inner costal spot continuing as a blackish 

 bordering line to inner margin; discal dots distinct, 

 separated, black; a row of blacldsh dots along termen. 

 Hind wing ocherous brown, darker brown on most fe- 

 males ; a dark line along termen and some darkening of 

 the veins. Alar expanse, 24-28 mm. 



Male genitalia differing only in insignificant details 

 from those of bistriatella and incorruscella. 



Female genitaha with sclerotized wrinklings of bursa 

 more extended than in other species of the genus; duc- 

 tus bursae weakly granulate towards genital opening 

 (differences of little or no significance) . 



Type locality: Colorado (type in AMNH, ex Rut- 

 gers). 



Food plant: Unknown. 



Distribution: United States: Colorado, Denver 

 (June), Florissant (July), Gunnison County (near Al- 

 mont, June, July), Piatt Canyon (July), no specific lo- 

 cahty (June) ; Nevada; Secret Pass (Elko County, June) ; 

 Calijornia, Deer Park Springs (Lake Tahoe, July), Tuo- 

 lumne Meadows (July); Washington, Easton, WaUa 

 WaUa (June). Canada: Manitoba, Aweme (July); 

 British Columbia, Blue Lake (west of Lytton, Aug.) . 



The foregoing description was drawn from typical 

 Colorado examples. The British Columbia and Wash- 

 ington specimens before me are much darker, the ocher- 

 ous coloration of forewing replaced by deep brown and 

 the general color of the wing a suffused blackish fuscous 

 with only the white transverse lines and some whitish 

 dusting in the median area contrasted; the hind wings 

 deep brown to blackish brown with no ocherous tinting. 

 This is merely a color form, not a race, and probably 

 represents nothing more than individual response to a 

 moist condition. The Nevada record, cited above, is 

 from a single male in the Canadian National Collection 

 (Grace H. and John L. Sperry, collectors). It also rep- 

 resents a divergent color form with very dark brown 

 hind wing, a dark ground color on forewing and strongly 

 marked, white, transverse lines. The tj^e in the Rut- 

 gers Collection is a male. Its genitalia agree in every 

 detail with those of our pale and dark forms. 



Genera 59-64: Immyrla to Quasisalebria 



[Venational division B. Veins 4 and 5 of forewing slightly 

 separated at base, in Oreana connate or, rarely, very shortly 

 stalked; vein 6 straight. Hind wing with veins 7-8 approximate 

 or very shortly anastomosed beyond cell. Antenna of male with 

 sinus and scale tuft at base of shaft. Labial palpus erect or 

 oblique, smooth scaled; on male second segment grooved to hold 

 maxillary palpus. Maxillary palpus of male in the form of an 

 aigrette. Male genitalia with transtilla absent, or incomplete 

 and with its elements rudimentary; penis normally armed with 

 a single strong cornutus (except Oreana which has several cornuti 

 and Quasisalebria which has none). Female genitalia with bursa 

 more or less finely and densely spined or scobinate.] 



59. Genus Immyrla Dyar 



Immyrla Dyar, Journ. New York Ent. Soc, vol. 14, p. 108, 

 1906.— Forbes, Cornell Mem. 68, p. 627, 1923. (Type of 

 genus: Immyrla nigrovittella Dyar.) 



Tongue well developed. Antenna pubescent; a sinus 

 and large-scale tuft on base of shaft of male. Labial 

 palpus erect; reaching above vertex; smoothly scaled; 

 second segment on male grooved to hold the maxillary 

 palpus, appressed to face; third segment minute Gess 

 than one-fifth the length of second and hidden in the 

 scaling of the latter on male, a trifle longer and partially 

 exposed on female), acuminate. Maxillary palpus of 

 male in the form of an aigrette; of female squamous. 

 Forewing with subbasal scale ridge; 11 veins; vein 2 

 from before lower outer angle of cell; 3 from the angle, 

 closer to 4 than to 2; 4 and 5 approximate for a short 

 distance from their bases; 6 from below upper angle of 

 cell, straight; 8 and 9 stalked for over half their lengths; 

 10 from the cell, approximate for a short distance to the 



